liberscribble/include/scbpoints.h File Reference

#include <glib.h>
#include "scbpoint.h"

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Go to the source code of this file.

Classes
struct	_ScbPoints
Typedefs
typedef struct _ScbPoints	ScbPoints
typedef ScbPoints *	ScbPointsPtr
Functions
gboolean	scb_points_new (ScbPointsPtr points, const int initSize)
void	scb_points_free (ScbPointsPtr points)
void	scb_points_append (ScbPointsPtr points, ScbDevPointPtr point)
int	scb_points_get_count (ScbPointsPtr ptr)
ScbPointPtr	scb_points_get_data (ScbPointsPtr points)
void	scb_points_dump (ScbPointsPtr points)

---

Typedef Documentation

typedef struct _ScbPoints ScbPoints

Copyright (C) 2005-2008 iRex Technologies B.V. All rights reserved.

typedef ScbPoints* ScbPointsPtr

Definition at line 40 of file scbpoints.h.

---

Function Documentation

void scb_points_append	(	ScbPointsPtr	points,
		ScbDevPointPtr	point
	)

Definition at line 64 of file scbpoints.c.

{
    // check
    SCB_RET_IF(NULL == points || NULL == point, "Invalid pointer(s)!");
        
    // by value. they are binary compatible
    g_array_append_val(points->points, *((ScbPointPtr)point));
    g_array_append_val(points->pressures, point->pressure);
}

void scb_points_dump

(

ScbPointsPtr

points

)

Definition at line 93 of file scbpoints.c.

{
    ScbPointPtr point = scb_points_get_data(ptr);
    SCB_RET_IF(NULL == point, "");
    
    int len = scb_points_get_count(ptr);
    SCB_DUMP("points count %d. data:", len);
    while (len > 0)
    {
        SCB_DUMP("(%d, %d)", point->x, point->y);
        ++point; --len;
    }
}

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void scb_points_free

(

ScbPointsPtr

points

)

Definition at line 52 of file scbpoints.c.

{
    SCB_RET_IF(NULL == ptr, "Try to release NULL pointer!");
        
    g_array_free(ptr->points, TRUE);
    g_array_free(ptr->pressures, TRUE);
    ptr->points = NULL;
    ptr->pressures = NULL;
}

int scb_points_get_count

(

ScbPointsPtr

ptr

)

Definition at line 76 of file scbpoints.c.

{
    SCB_RET_INT_IF(NULL == ptr, SCB_INVALID_COUNT, "Attempt to access NULL pointer!");
    SCB_RET_INT_IF(NULL == ptr->points, SCB_INVALID_COUNT, "Point array is not allocated!");
    // lengthes are equal
    return ptr->points->len;
}

ScbPointPtr scb_points_get_data

(

ScbPointsPtr

points

)

Definition at line 86 of file scbpoints.c.

{
    SCB_RET_NULL_IF(NULL == ptr || NULL == ptr->points, "NULL pointer(s)");
    return (ScbPointPtr)ptr->points->data;
}

gboolean scb_points_new	(	ScbPointsPtr	ptr,
		const int	initSize
	)

Copyright (C) 2005-2008 iRex Technologies B.V. All rights reserved.

Definition at line 32 of file scbpoints.c.

{
    SCB_RET_FALSE_IF(NULL == ptr, "Invalid pointer!");
    SCB_RET_FALSE_IF(initSize <= 0, "Invalid initial size!");
        
    ptr->points = g_array_sized_new(FALSE, TRUE, sizeof(ScbPoint), initSize);

    SCB_RET_FALSE_IF(NULL == ptr->points, "Could not allocate enough memory!");
    ptr->pressures = g_array_sized_new(FALSE, TRUE, sizeof(int), initSize);
    
    if (NULL == ptr->pressures)
    {
        g_free(ptr->points); ptr->points = NULL;
        return FALSE;
    }
    return TRUE;
}